Overview

overview

10

Static

static

10

Bootstrapper.exe

windows11-21h2-x64

10

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General

  • Target
    Bootstrapper.exe
  • Size 3.1MB
  • Sample240807-23mjvszbmb
  • SHA256 b14b916cd2f188ea09035489056e0bff9f8cb8e4a30eff50172f86319fabc940
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • wefdwef-34180.portmap.host:34180

Mutex

  • c4be1726-3f86-4f80-bc7c-0779b06ffeeb

Attributes
  • encryption_key

    97BF1FDCF446A7218FA05296FD8D8F0C41A6B1E7

  • install_name

    Bootstrapper.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Spotify

  • subdirectory

    system32

Signatures

  • Quasar family
    quasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • Bootstrapper.exe
    .exe 3.1MB

Bootstrapper.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 b14b916cd2f188ea09035489056e0bff9f8cb8e4a30eff50172f86319fabc940
  • MD5 SHA1 SHA512 SSDEEP
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269694
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths